How to Make a Shunt Current Sense Resistor 

ElectroBOOM How does you contacted them by email or by PM?

Oh shunt. I just missed the Electroboom Meeeetaaaaaaa.

Hey doesn't the current lags in an inductive circuit? 10:11

gimme da meter

ElectroBOOM ur videos are so good

Thank u for the like! I am currently binge watching your videos! I saw the 1 million subscriber video. You should sing a song in Persian sometime! Ya got a great singing voice

This explains why my house is full of lightbulbs.

floorpizza And here I thought I was the only one! Lol

I knew Edison was a moron.

Jimmy Johnson I couldn't agree more

His brain: touch it Him: why? His brain: cause you have too Him: ouch His brain :do it again Him : ouch Also his brain: do it again Him :ouch

@@partisancrown2674 *_cause you have to_* - the thought that runs through every one person's mind before doing anything stupid

I agree

.😂😂

6:10 melts fingers

I couldn't have said it better

Exactly what I was thinking right now.

Yep, exactly my thoughts as well :D

Subscribe Kurzgesagt for more such things, ignore if already done.

*procceeds to touch it 3 times in a row*

Starts cooking human finger

Mmm... BBQ roasted Mehdi

🤣🤣🤣🤣🤣🤣🤣😆

@@timmyg8888 finger barbeque

YEAH, just be careful not to burn yourself like he did....or else you house....or your workplace.....

Gimmedahmeettaahhh for being the pedantic shunthole who caugh it! :D I am a poor, unemployed engineer who doesn't own a fancy LCR yet :'(

Hi Mehdi, can you just look into a product that says it can decrease current consumption and thus reduce the cost of paying utility bills? I don't have the equipment to test it at home... This is the box it came in photos.app.goo.gl/OWe8679034jHoOWg2

OK , got it.

ElectroBOOM I love you man you make me laugh every day and I tried the vacuum thing but I failed but I like your videos keep up the good work

ElectroBOOM do you know anything about cathodic protection? If so could you help me on my cp1 test?

Yeah because it means the insulator has burned off, causing short circuits in various places. There's no good way to fix that.

John Michael Stock no shit. It’s a joke

Yeah. There's a little truth on that. Unfortunately, Transformers don't have any opening to refill that smoke ;)

you let out the factory smoke!! you cant fix that!

Every electronic component works with smoke, but once it's out it's broken. And they added no refill valves because the want you to buy new parts

Happened to me yeah it's not fun trust me lol.

some 3-3 and half hours of footage for 11:16 mins of video

Anyone noticed half of it happened the next day?!

yes indeed xD it goes from like 4:30 pm to suddenly like 1:30pm towards the end of the video. Time traveling much? :D

Probably somewhere at the point where he put fuckin' sear lines into his goddamn fingers. Christ

that made me feel the pain just looking at it!!

lol yeah I love it, Mahdi do it on a T-shirt I'm buying

Is he talking about Thomas Edison? Haha

Bingo !

I have the same variac, I think I'm doing it wrong. i.imgur.com/0g7FugJ.jpg

2018 A.D.

actually from experience not that much or not at all, the temperature will be very high but for short time like a flash and something will break the circuit so just the outer layer of the skin is burned up and you you just left up with shame and the bad smell.

@@mmawad100 It's a great smell. I think the heat kind of cauterises the nerve endings too which means less pain. Or I may have just made that up.

Because it did

​@@mmawad100I've burnt myself with a wire before During the burning it didn't hurt, but it "felt very wrong", can't really describe it Afterwards it started hurting more and more and the pain increased continuously for like 12 hours After that it started dropping but it was still kinda painful for a while (days) It wasn't super bad, it's like cutting yourself with a knife a bit, like on accident in a kitchen

if it makes you watch twice, that was a good decision!

Clouder I was just looking down here if I am the only one :D

Clouder should get the meeter. He is making people double watch the videos. :)

ElectroBOOM can you explain why vape are exploding?

Funny I had to watch it again to look at the clock LOL

Squid SQuiddly Same..wish i had a professor like him but instead my professors were paranoid beings who wont even let us work on high power labs like power system (advance) lab,etc and our role was only to note reading while lab attendants do all the interesting stuffs!

(Walks in room with transformer and burnt fingers) So, let's (zap) SH*** OH F***!! SH**! I was supposed to turn that off before I spoke to you.

*Shawn Scientifica* I can already hear him speaking with his accent in my head

Squid SQuiddly icu everywhere

Your face is like a octopus

No it hasnt, thanks for the info :-D

Also there is a simple way to show this: take small (5-10VA) 220-12V iron core step down transformer, and slowly raise the voltage on its 12v winding with your variac, starting at 0V, monitoring the current; if the transformer is good, at 12v you will see nearly a sine wave current, but as you will go higher, the current will become more and more like shown in the video, because beyond nominal voltage the core will start to saturate.

Thankyou, i have saved your text to file for later use :-D

dankvader 214 I need that xD

Imagine dis: ElectroBOOM but everytime he says shunt he gets shocked or burned.

@@asianboi2867 or gets SHUNT!

@@J.Crystal1248 or he has to witness his Tesla coil getting destroyed?

@@asianboi2867 Nah, this'll be devastating in all aspects ;)

Perktube1 Shunt the flux up.

good one 😁

Oh shunt Up

you're such a shunt head

You're a DC-head!

nice explanation

Next time I want to call someone a s****c*** I can just call them a shunt :)

@@untrust2033 u better not do it to me I play league of legends I'm toxic so that's a warning

@@gigaacademia9313 be quiet, shunt

Fu

7:24 -unfortunately- *AND fortunately*

It would have been so much funnier if he said unfortunately. I'm going to start using that now lol

task failed successfuly

guitarstitch O

It's all fun and all that he gets electrocuted from time to time but he surely knew this was going to happen. I would advice him not to do these things or step down the voltage beforehand so he won't get burnt and it would still be equally funny. Mehdi, I like your videos even with less explosions, just want you to be safe.

its the winding overheating

that is a fire from transformer

da Costa had to rewatch to enjoy the Travel or time.

We need a shirt with that phrase

Tesla > Edison ‘nough said.

Raoul I

Probably one of the funnier things electroboom said

Me : *doing some soldering on a relatively safe project* Mom : YoU nEeD sUm SaFeTy bOi Me : But it's fine, i know what I'm doing Mom : U R 14 quit the balktalk i am the authority [even though I have no idea what electricity even is]

@@technicallydifficulties7094 bro same here I wanna build a human flight system for my hands and feet for example like iron man so basically a flying like iron man project but then she says you'll get hurt like i know what in doing I have all the mats hydrogen and oxygen energy transifmromers and servos

@@Marcus-pv9le *_e x c u s e m e_*

a *S H U N T*

I'm making a sh*t

Me

I

Infotainment god

I do, he's my favourite you tuber!

Thanks for all the likes!

Simas Pudziuvelis he deserves it

I was about to say the same thing, eli the iceman, voltage leads current in an inductor

He said "and fortunately", not "unfortunately"

@@user-lg7cb6sr5z I know you're right but I don't want to believe you

Half a mether

Wow you really want his meat don't you?

I used some 12ga wire, and a couple of spare banana plugs to make a shunt to install across my DMM's 10A current meter inputs. I used a power supply and 2-ohm power resistor to put 1.000A through the current meter, then adjusted the length of my shunt until the meter read about 0.1A, with 1.0A actually flowing through it (divide by 10). I had to trim and resolder the wire multiple times, but after about 5 tries, I got to 0.098A and called it good. This allows me to make current measurements beyond the range of the DMM with reasonable accuracy (5% maybe?). This shunt only works with this one particular DMM, and only on the full DC-amp (not mA or uA) rotary switch setting. I don't think I would use this to measure anything over about 40A for any extended period. The shunt would start to heat, and it's resistance will increase, causing error. I always plug the shunt into the DMM first, then the leads into the top of the banana plugs of the shunt. That way, I don't pop a fuse on the DMM if the shunt comes loose.

i was confused about this too. ELI’s ICE and all that. but the scope seems to be showing a leading current?

@@muluskuvuch I'm not alone after all. Would like to hear others too on this. I see the scope showing a leading voltage (green leading yellow)

I think it was just a bad choice of words. "Leading" as in "being further ahead on the time scale", which translates into being late, or lagging. That's my take on it

He said it the wrong way round.

What seems pictorially leading in graph is actually lagging vs time. Think about it!

0:01

@@lonely_7891 I want to make a 💩

SO FUCKIN' TRUE! 😎

zztop3000 ElectroBOOM is actually called: Mehdi Sadaghdar. Got it?

I know, that looked horrible. Like his skin was plastic and the wire melted itself into it.

Yeah I always thought all the grabbing of burny bits was more sleight of hand, for our amusement... not so sure now I kinda feel bad for encouraging this kind of behavior. But I’ll still gladly take a meeta:)

You know, some people really enjoy to feel pain. In almost all of his videos you can see him getting electrocuted or burned so either he's very stupid, which I know he's not, or he's sadomasochist. I bet he's having a donjon room in his house... :P

I think it's more he sets MOST of those up, yes he usually gets bit, but he designs the skit with that in mind to mitigate most of the risks. I do not think he MEANT to do this one, though. This one is probably the worst, or second worst, him grabbing the falling MOT jacob's ladder was probably not planned, either

@Step Two And A Half Yeah, I think you’re on to it, he showed the injury because it’s NOT the norm, he got bit and wasn’t really expecting it.

Oof

If@@thischannelisdead2839, then why is it still alive?

@@timmyg8888 good point

lol 😝

IcanTellYouHadEnoughYTForTodayStopWastingYourTimeAndMakeSthOutOfYourLifeNowAndDontReadMyNameAgain haha dat name

IcanTellYouHadEnoughYTForTodayStopWastingYourTimeAndMakeSthOutOfYourLifeNowAndDontReadMyNameAgain xD

IcanTellYouHadEnoughYTForTodayStopWastingYourTimeAndMakeSthOutOfYourLifeNowAndDontReadMyNameAgain omg haha

Gimma da metta!

the bleep makes it even funnier 😂

:(

You know what? maybe if I change my vocabulary to SHUNT I wouldn't have to bleep my videos and save some time there!

ElectroBOOM that's assuming RU-vid algorithm can separate SHUNT and s*it.

It can't even separate shit from good (in content quality)

32 CAUSE IT HAS 32 LIKES

Rohini Kanekar Awwww, look at this cute little green troll ^^

also it will be extremelly useful for future projects.

Wow some serious stuff man good luck. Make sure to share that with us in your RU-vid channel :)

So, the grinding, polishing and figuring stages are already finished? ;)

Damn, you're essentially crafting your own telescope? Nice, good luck and remember to never give up.

silver already melted, grass is shipping with the abrasives, all the necessary tools are ready, i'm only 15 lol i'm out of money, just the glass blowed up my budget so.. a lot of hard work coming

electronicsNmore But he doesn't vape xD

Danial3W lol

his body resistance, resists the voltage, therefore no current flows because voltage is required to push current thats why signs say "DANGER High VOLTAGE" not high current.

XxMine231xX yes, but 1. The resistance of his tongue is low 2. Current will take any and all paths between two potentials (both terminals are in his mouth) 3. To me it looks like a parallel circuit: low resistive path through shunt, slightly higher resistive path through tongue That's why I'm confused

Shane yeah current will mainly take path of least resistance and in this case it is a parallel circuit and the wire has less resistance thus meaning that he wont be electrocuted

Forgot to add the wire is insulated so he may have not touched both probes

You're right in that it is a parallel circuit and our hero is simplifying: there is _negligible_ voltage across the 2 sides of his mount, leading to _negligible_ current through his tongue. There is _some_ current through his tongue, but it's tiny because the wire has far less resistance than his tongue, and most of the current goes through the lower resistance. I did wonder if the wires were going to come loose at that point and put the full PSU voltage across his tongue. *cringe*

Exactly! :)

Is the stupid p2w app store company called GLU actually an popular thing?

He doesn't LOOK like… he IS the dictator of electronica

FULL bridge RECTifier!

no current for you! NEXT!

Thomas Sears furry nigga

Michael Remington k